Drilling-machine.



GIMI PICCONE AND SAMUEL LIPPIS, OF CHANDLER, COLORADO.

DRILLING-IVXACHINE.

Specification of Letters Patent.

.latentei some, 1531;

Application filed November 1912. Serial No. 729/176.

To (all w/umr it muj/ come/vi lie it known that we, (jiIMit 1..1oconn and SAMUEL Llrrls, citizens of the United States of America, residing at Chandler, in the county of Fremont and State of Colorado, have invented certain new and useful Iniprovements in Drilling-ditchines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a drilling machine, and the primary object of our invention is to provide a drilling machine that can be advantageously used in mines, quarries, excavations and other places for drilling holes to receive explosives for disintegrating earth, rock and other matter or for testing subterranmin conditions.

Another object of this invention is to provide a drill machine that has an angularly disposed drill holder and novel means for imparting a rotary movement to the drill supported by said holder.

A further object of this invention is to provide a machine with an adjustable drill holder that can be shifted longitudinally of the machine without interfering with a transmission mechanism employed for imparting movement to the drilling machine.

A still further object of this invention is to provide a drilling machine consisting of comparatively few parts, that is strong and durable, easy to assemble, inexpensive to manufacture, easy to operate and highly oilicient for the purposes for which it is intended.

With the above and other objects in view the invention resides in the novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein Figure 1 is a side elevation of the drilling machine, and Fig. 2 is a front elevation of the same.

A machine in accordance with this invention comprises heads 1 and 2 connected by longitudinal parallel sets of guide bars 3 and 1, said bars providing longitudinal slots 5. The head 1 is mounted upon a sup port 1. Rotatably mounted in the heads 1 and 2 is a longitudinal feed screw 6 that has the ends thereof provided with hand wheels 7 whereby said screw can be easily rotated. Slidably mounted upon the bars 3 are supports 8 and t) and the screw (3 passes through the supports 8 and 2) upon one of the bars whereby said supports will be spaced apart and moved in unison by rotating the screw (3. The supports 9 are connected by a strap 10 supporting a housing 11v and journalcd in said supports and extending through the slot 5 is a shaft 12. The ends of the shaft are provided with cranks or handles 13 and said shaft, within the housing 11 has a gear wheel 14. The supports 8 are provided with 1011- gitndinall y slotted bearings and movably arranged in said bearin s is a revoluble shaft 16. The shaft 16 has a gear wheel 17 and a beveled gear wheel b, said beveled gear wheel. meshing with a similar wheel 15) mounted upon the end of an angular-1y dis posed shaft 20, journaled in a bearing 21 movably supported by the ends of the shaft 1(3. The shaft 20 extends into the housing 11 and is provided with a beveled gear wheel 22 meshing with a similar wheel 23 mounted upon a shaft 2 1- journaled in the housin The shaft 21-, has a gear wheel 25 meshing with the gear wheel 14.

Slidably mounted in the slots 5 of the bars 1') and l: are the trunnions 26 of a drill holder 27 and loosely mounted upon said trunnions are side links 28 pivotally connected by a transverse shaft 2%) to side links 2:30 that are pivotally mounted upon the ends of the shaft 16. Screwed in the drill holder 27 is a drill shank 31 carrying a drill 31 that is provided with a beveled gear wheel 32 meshing with a similar wheel 33 mounted upon the shaft 29. Another gear wheel 34 upon said shaft meshes with the gear wheel 17.

it is preferable to maltc the gear wheels 17 and 18, 33 and 34; and 23 and 25 integral, as shown in Fig. 2.

From the foregoing it is apparent that when the shaft 12 is revolved that through the medium of the t'ain of gears power is transmitted to the drill shank 31 which is :uljustably supported by the trunnions 26. The drill holder can be shifted longitudinally of the machine by the feed screw 6 and the machine conveniently used for various purposes.

While in the drawing there is illustrated a preferred embodiment of the invention, it is to be umlcrstood that the structural elements are susceptible to such changes, as in size, shape and manner of assemblage as fall within the scope of the appended claims.

lVhat we claim is 1. A drilling machine comprising longitudinal guide bars, supports slidably mounted upon said bars, a revoluble shaft carried by one of said supports, a drill holder movably mounted upon said bars, a drill shank r0tatably mounted in said holder, means carried by said supports for transmitting power from said shaft to said drill shank, and means located adjacent to said bars for simultaneously moving said supports thereon.

2. A drilling machine comprising parallel sets of bars, supports slidably mounted upon said bars, a drill holder movably supported by said bars, a drill shank rotatably mounted in said holder, means carried by said supports and including a train of gears for rotating said drill shank, and a feed screw arranged longitudinally of said machine for simultaneously moving said supports.

In testimony whereof we aflix our signatures in the presence of two witnesses.

GIMI PICCONE. SAMUEL LIPPIS. Witnesses:

T. CAVANAUGH, JOSEPH LLOYD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

